Patch clamping can be used to measure the conductance properties of individual ion channels. How can patch clamping be used to determine whether the gene coding for a putative K⁺ channel actually codes for a K⁺ or a Na⁺ channel?

TLS Online TPP Program

#Question id: 19802

#Unit 13. Advances in Biotechnology

The low expression level of cry genes seems to be due to the presence in them of sequences not commonly found in plant coding regions. Such as

(1) Localized A+T-rich regions resembling plant intrans 

(2) 18 potential plant polyadenylation signal sequences 

(3) 13 ATTTA sequences, which destabilize mRNA

(4) Codons that are rarely used in plants

Which of the above statements are correct?                

TLS Online TPP Program

#Question id: 19803

#Unit 13. Advances in Biotechnology

Cowpea trypsin inhibitor (cpti), serine protease inhibitor (aprotinin), are all used as alternative insecticidal proteins. They are inhibitors of 

TLS Online TPP Program

#Question id: 19804

#Unit 13. Advances in Biotechnology

Insecticidal protein gene from the Streptomycesis taken and transformed tobacco plants to get resistance with

TLS Online TPP Program

#Question id: 19805

#Unit 13. Advances in Biotechnology

Some strains of B. thuringiensis produce vegetative insecticidial proteins known as

TLS Online TPP Program

#Question id: 19806

#Unit 13. Advances in Biotechnology

Several approaches have been used to engineer plants for virus resistance, which are as follows:

(1) coat protein gene 

(2) ribozyme-mediated protection

(3) defective viral genome

(4) antisense RNA approach

Which of the following above statements are correct?

TLS Online TPP Program

#Question id: 19807

#Unit 13. Advances in Biotechnology

The disease resistance generated by employing pathogen genes is called